java - Send data between two differents application using SharedPreferences -


i have 2 differents application in android. need send data 1 other one. first activity put in data value in sharedpreferences file:

sharedpreferences selector; selector = getsharedpreferences("tecnologia", context.mode_world_readable); editor editor = selector.edit();  select = (radiobutton) findviewbyid(opciones.getcheckedradiobuttonid());  switch (select.getid()) {     case r.id.radio0:       editor.putstring("opcion", "us");       editor.commit();       break;    case r.id.radio1:       editor.putstring("opcion", "uwb");       editor.commit();       break; }  intent = new intent(this, serviceconexion.class); startactivity(i); finish();

in second activity wich launch check file , correct. call remote servie.

in second service (second project) read file:

try {         context con = createpackagecontext(                 "org.gradiant.sistole.locdisplay",                 0);         sharedpreferences configuracion;         configuracion = con.getsharedpreferences("tecnologia",                 mode_private);         select = configuracion.getstring("opcion", "00");     } catch (namenotfoundexception e) {         // todo auto-generated catch block         e.printstacktrace();     }

but not has correct value. why?

you can't access other application data. instead can do., create file in sd card or location , access in both application.


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